Plants 10-20 cm tall. Rhizome elongate, usually more than 10 cm, 3-4 mm in diam., many noded. Stem glabrous toward base, rusty pubescent above, with 2 or 3 sheaths toward base. Leaves 4-6, ovate-lanceolate or lanceolate, 4-9 × 2-3 cm, adaxially slightly scabrous or glabrescent, base amplexicaul, apex acuminate. Rachis 5-8 cm, rusty pubescent, laxly 5-8-flowered; floral bracts 15-40 × 5-10 mm, lower ones exceeding flowers. Flowers resupinate, yellow-green tinged purple; pedicel and ovary 13-16 mm, yellowish brown pubescent. Dorsal sepal obovate-elliptic, cymbiform, 13-17 × 5-7 mm, apex acuminate; lateral sepals ovate-lanceolate, oblique, slightly wider than dorsal sepal. Petals ovate-elliptic, 13-16 × 5-7 mm, apex obtuse; lip without a mesochile; hypochile cymbiform, 7-9 × 12-16 mm, with erect lateral lobes; epichile thickened, subovate, 8-9 × 4-5 mm, with 3 central crisped lamellae. Column 6-7 mm. Fl. Jun-Jul.
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